/**
* SmallSilder JQuery plugin
* http://lib.kindcent.com/smallslider
* JQuery plugin for switch images, Please Open me with UTF-8 encoding
* Created under Ubuntu 9.10 OS , if you open it with notepad.exe , some black squares will appear !
* 这是一个源码开放程序，本人特意加上注释以方便大家修改，你可以自行修改，再发布，欢迎和我交流。
* 0.5版本新增加actionGap延时选项，部分解决快速滑动时的闪烁问题。
* 即鼠标放上面后，需要等待一段时间才开始切换，默认为200毫秒。
* 不知何年何月才能算1.0版呢？因为我一直觉得切换的过渡效果还没有完全达到我的意志！
*
* Licensed under The MIT License
*
* @version 0.5
* @since 2009-7-3, 11:56:24
* @last 2010-12-6, 01:25:56
* @author Jesse <microji@163.com>
*/
/**
* Usage: $('#slider').smallslider({ onImageStop:true, switchEase: 'easeOutSine',switchPath: 'left'});
*
* @param elm 你想要使用的最外层
* @param options 一些附加参数
*
* Valid options:
* ---------------------------------------
* time:3000, // 切换时间间隔，单位毫秒，1秒=1000毫秒
* autoStart:true, // 是否自动开始播放
* onImageStop : false , // 鼠标放在图片上时，是否停止播放
* switchMode:'hover', // 图片切换的方式，click为单击切换，hover为鼠标移动到按钮上时切换
* switchEffect:'fadeOut', // 切换特效,fadeOut, ease, none,
* switchPath: 'left' , // 切换的方向，可选值为：up ， left ，即向上，向左
* switchEase : 'easeOutQuart' , // 可选值列表如下
* switchTime: 600, // 切换时间，单位毫秒，1秒=1000毫秒
* actionGap: 200, //[0.5版本新增]鼠标单击或移动触发切换，切换响应的时间间隔，0为立即响应，时间越大，响应越慢
* buttonPosition: 'rightBottom', // 按钮位置表示，共有四个值：leftTop，leftBottom, rightTop, rightBottom
* buttonOffsetX:10, // 水平方向上的按钮偏移位置，指向中心部移动多少，这里是数值，不加px
* buttonOffsetY:4, // 竖直方向上的按钮偏移位置，指向中心部移动多少，这里是数值，不加px
* buttonSpace:4, // 按钮之间的间隔 单位为像素，但不要加px
* showText: true, // 是否显示标题，如果不显示，则只显示按钮
* showButtons : true, // 是否显示按钮，默认显示
* textLink : true, // 是否给显示的标题加上链接，如果为false，则，只显示标题，标题不可单击，链接的地址自动和当前播放到的图片地址一致
* textSwitch : 0 , // 标题是否运动显示，如果为0则不动，1 标题动，2 标题和背景一起动。
* textPosition: '', // 标题栏的位置，默认为空，即和按钮的位置一致，取值 top , bottom
* textAlign: '' // 如果留空，则会默认和按钮位置的相反方向排列，取值：left, center, right
*/
(function($) {
$.smallslider=function(elm, options){
// this 为当前的smallslider对象，为了区别，使用 _this 替换
var _this = this;
_this.elm = elm ; // elm 为当前的 DOM对象 ，即使用class="smallslider" 的那个div对象。
_this.$elm = $(elm); // $elm 为elm对象的jquery形式
_this.opts=$.extend({},$.smallslider.defaults, options);
_this.sliderTimer= null ;
_this.actionGapTimer = null;
_this.slideProcessing = false;
// 初始化对象
_this.init = function()
{
_this.$ul = _this.$elm.find('>ul') ; // 为子元素ul
_this.$lis = _this.$elm.find('li') ; // 为所有ul下子元素li 数组
_this.$ims = _this.$elm.find('img') ; // 为所有li下子元素img 数组
_this.itemNums = _this.$lis.length ;
_this.width = _this.$elm.width();
_this.height = _this.$elm.height();
_this.current = 0 ; // 当前的index索引
if(_this.itemNums > 1)
{
if(_this.opts.switchEffect=='ease')
{
_this.$ul.css({
position:'absolute',
left:0,
top: 0
});
if(_this.opts.switchPath=='left')
{
var width = _this.itemNums * _this.width;
_this.$lis.css({
'float' : 'left'
});
_this.$ul.css({
'width' : width
});
}
else if(_this.opts.switchPath=='up')
{
var height = _this.itemNums * _this.height;
_this.$ul.css({
'height' : height
});
}
}
else if(_this.opts.switchEffect=='fadeOut')
{
_this.$ul.css({
position:'relative'
});
_this.$lis.css({
position:'absolute',
zIndex:1
}).eq(0).css({
zIndex:2
});
}
if(_this.opts.showButtons)
{
_this.createButtons(); // 创建按钮。
}
if(_this.opts.showText)
{
_this.createText(); // 创建文字显示。
}
if(_this.opts.autoStart)
{
_this.startSlider(1);
}
if(_this.opts.onImageStop)
{
_this.onImage();
}
}
};
_this.createButtons = function()
{
var buttons='';
for(var i=1; i <= _this.itemNums ; i++ ){
buttons += '<span>'+i+'</span>';
}
buttons ='<div class="smallslider-btns">' + buttons + '</div>';
var left=0,right=0,top =0,bottom=0;
var style_btns={};
switch(_this.opts.buttonPosition){
case 'leftTop':
left = _this.opts.buttonOffsetX;
top = _this.opts.buttonOffsetY;
style_btns={left: left + 'px' , top: top+'px'};
break;
case 'rightTop':
right = _this.opts.buttonOffsetX;
top = _this.opts.buttonOffsetY;
style_btns={right: right + 'px' , top: top+'px'};
break;
case 'rightBottom':
right = _this.opts.buttonOffsetX;
bottom = _this.opts.buttonOffsetY;
style_btns={right: right + 'px' ,bottom: bottom+'px'};
break;
case 'leftBottom':
left = _this.opts.buttonOffsetX;
bottom = _this.opts.buttonOffsetY;
style_btns={left: left + 'px' ,bottom: bottom+'px'};
break;
}
$(buttons).css(style_btns).appendTo(_this.$elm);
_this.$btns = _this.$elm.find('span');
_this.$elm.find('span:not(:first)').css({marginLeft: _this.opts.buttonSpace+'px'});
_this.$btns.removeClass('current-btn');
_this.$btns.eq(0).addClass('current-btn');
if(_this.opts.switchMode=='click'){
_this.$btns.click(function(){
var ix = _this.$btns.index($(this));
//_this.slideTo(ix); // 表示需要切换到哪一张
_this.actionSlide(ix);
});
}else if(_this.opts.switchMode=='hover'){
_this.$btns.hover(function(){
var ix = _this.$btns.index($(this));
//_this.slideTo(ix);
_this.actionSlide(ix);
});
}
};
_this.actionSlide = function(ix){
// console.log(_this.actionGapTimer);
if(_this.actionGapTimer){
clearTimeout(_this.actionGapTimer);
_this.actionGapTimer = null ;
}
_this.actionGapTimer = setTimeout(function(){_this.slideTo(ix) ;}, _this.opts.actionGap);
};
// 创建标题标签
_this.createText = function(){
var style_tex={};
switch(_this.opts.buttonPosition){
case 'leftTop':
style_tex={left:0, top:0,textAlign:'right'};
_this.textPosition = 'top';
break;
case 'rightTop':
style_tex={left:0, top:0,textAlign:'left'};
_this.textPosition = 'top';
break;
case 'rightBottom':
style_tex={left:0,bottom:0,textAlign:'left'};
_this.textPosition = 'bottom';
break;
case 'leftBottom':
style_tex={left:0,bottom:0,textAlign:'right'};
_this.textPosition = 'bottom';
break;
}
if(_this.opts.textPosition){
switch(_this.opts.textPosition)
{
case 'top':
style_tex.left = 0 ;style_tex.top = 0;
break;
case 'bottom':
style_tex.left = 0 ;style_tex.bottom=0 ;
break;
}
_this.textPosition = _this.opts.textPosition ;
}
if(_this.opts.textAlign)
{
style_tex.textAlign =_this.opts.textAlign;
}
$('<div class="smallslider-tex smallslider-lay"></div>').css(style_tex).css({
opacity:0.39
}).appendTo(_this.$elm);
var tex0= _this.$ims.eq(0).attr('alt');
if(_this.opts.textLink){
tex0 = '<a href="'+_this.$ims.eq(0).parent('a').attr('href')+'">'+ tex0+'</a>';
}
$('<h3 class="smallslider-tex"></h3>').css(style_tex).html(tex0).appendTo(_this.$elm);
_this.$h3 = _this.$elm.find('h3');
_this.$lay = _this.$elm.find('div.smallslider-lay');
_this.$tex = _this.$elm.find('.smallslider-tex');
};
_this.onImage =function(){
_this.$ims.hover(function(){
_this.stopSlider();
}, function(){
_this.slideTo(_this.current+1);
});
};
_this.slideTo = function (index){
_this.stopSlider(); // 先清掉以前的setTimeout;
if(index > _this.itemNums -1) index = 0;
if(index < 0 ) index = _this.itemNums -1 ;
// 切换表示当前元素
_this.$lis.removeClass('current-li').eq(index).addClass('current-li');
if(_this.opts.showButtons)
{
_this.$btns.removeClass('current-btn');
_this.$btns.eq(index).addClass('current-btn');
}
_this.slideText(index);
var chAttr = '';
var iC = 0;
switch(_this.opts.switchPath)
{
case 'left':
chAttr = 'left';
iC =_this.width ;
break;
case 'up':
default :
chAttr = 'top';
iC = _this.height ;
break;
}
var iCx = -1 * index * iC; // Top或Left 变化量
var switchEase = _this.opts.switchEase ;
switch( _this.opts.switchEffect){
case 'fadeOut':
if(_this.current != index)
{
_this.slideProcessing = true ;
_this.$lis.stop(true,false);
_this.$lis.css({zIndex:1,opacity:1}).hide();
_this.$lis.eq(_this.current).css({zIndex:3}).show();
_this.$lis.eq(index).css({zIndex:2}).show();
_this.$lis.eq(_this.current).fadeOut(_this.opts.switchTime,function(){
_this.$lis.css({zIndex:1});
_this.$lis.eq(index).css({zIndex:3,opacity:1}).show();
_this.slideProcessing = false;
});
}
break;
case 'ease':
_this.$ul.stop(true,false);
if(chAttr=='top')
_this.$ul.animate({top : iCx}, {duration: _this.opts.switchTime, easing: switchEase, complete: function(){
}
});
else if(chAttr=='left')
_this.$ul.animate({left : iCx}, {duration: _this.opts.switchTime, easing: switchEase ,complete:function(){
}});
break;
case 'none':
default :
_this.$lis.eq(_this.current).hide();
_this.$lis.eq(index).show();
break;
}
_this.current = index ;
_this.startSlider(index+1);
};
// 切换文字
_this.slideText = function(index)
{
if(_this.opts.showText)
{
var tex = _this.$ims.eq(index).attr('alt');
if(_this.opts.textLink){
tex = '<a href="'+_this.$ims.eq(index).parent('a').attr('href')+'">'+ tex+'</a>';
}
_this.$h3.html(tex);
if(_this.opts.textSwitch>0){
var t_path = _this.$h3.height();
var t_ani1 ={}, t_ani2 ={};
if(_this.textPosition=='top'){
t_ani1 = {top : -1*t_path};
t_ani2 = {top : 0};
}
else if(_this.textPosition=='bottom'){
t_ani1 = {bottom : -1*t_path};
t_ani2 = {bottom : 0};
}
if(_this.opts.textSwitch==1) {
_this.$h3.stop(true, false).animate(t_ani1, {duration: 200, easing: 'easeOutQuad'}).animate(t_ani2, {duration: 200, easing: 'easeOutQuad'});
}else if(_this.opts.textSwitch==2){
_this.$tex.stop(true, false).animate(t_ani1, {duration: 200, easing: 'easeOutQuad'}).animate(t_ani2, {duration: 200, easing: 'easeOutQuad'});
//_this.$lay.animate(t_ani1, {duration: 200, easing: 'easeOutQuad'}).animate(t_ani2, {duration: 200, easing: 'easeOutQuad'});
}
}
}
};
// 开始切换
_this.startSlider = function(index){
// 由第几个序号开始 初始为1
var st =setTimeout(function(){
_this.slideTo(index);
},_this.opts.time);
_this.sliderTimer = st ;
};
// 停止切换
_this.stopSlider = function(){
//if(_this.opts.switchEffect=='fadeOut') _this.$lis.stop();
// else if(_this.opts.switchEffect=='ease') _this.$ul.stop();
if(_this.sliderTimer) {
clearTimeout(_this.sliderTimer);
}
_this.sliderTimer = null;
};
_this.init();
};
$.smallslider.defaults={
time:3000,
autoStart:true,
onImageStop : false ,
switchMode:'hover',
switchEffect:'fadeOut',
switchPath: 'left' ,
switchEase : 'easeOutQuart' ,
switchTime: 600,
actionGap: 200,
buttonPosition: 'rightBottom',
buttonOffsetX:10,
buttonOffsetY:4,
buttonSpace:4,
showText: true,
showButtons : true,
textLink : true,
textSwitch : 0 ,
textPosition: '',
textAlign: ''
};
$.fn.smallslider = function(options){
// 遍历由$.smallslider类创建生成的smallslider对象。
return this.each(function(i){
(new $.smallslider(this, options));
});
};
})(jQuery);
$.smallslider.switchEases = ["easeInQuad", "easeOutQuad", "easeInOutQuad", "easeInCubic", "easeOutCubic",
"easeInOutCubic", "easeInQuart", "easeOutQuart", "easeInOutQuart", "easeInQuint", "easeOutQuint", "easeInOutQuint",
"easeInSine", "easeOutSine", "easeInOutSine", "easeInExpo", "easeOutExpo", "easeInOutExpo", "easeInCirc", "easeOutCirc", "easeInOutCirc", "easeInElastic",
"easeOutElastic", "easeInOutElastic", "easeInBack", "easeOutBack", "easeInOutBack",
"easeInBounce", "easeOutBounce", "easeInOutBounce"];
// t: current time, b: begInnIng value, c: change In value, d: duration
jQuery.easing['jswing'] = jQuery.easing['swing'];
jQuery.extend( jQuery.easing,
{
def: 'easeOutQuad',
swing: function (x, t, b, c, d) {
//alert(jQuery.easing.default);
return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
},
easeInQuad: function (x, t, b, c, d) {
return c*(t/=d)*t + b;
},
easeOutQuad: function (x, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
},
easeInOutQuad: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t + b;
return -c/2 * ((--t)*(t-2) - 1) + b;
},
easeInCubic: function (x, t, b, c, d) {
return c*(t/=d)*t*t + b;
},
easeOutCubic: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t + 1) + b;
},
easeInOutCubic: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t + b;
return c/2*((t-=2)*t*t + 2) + b;
},
easeInQuart: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t + b;
},
easeOutQuart: function (x, t, b, c, d) {
return -c * ((t=t/d-1)*t*t*t - 1) + b;
},
easeInOutQuart: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
return -c/2 * ((t-=2)*t*t*t - 2) + b;
},
easeInQuint: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t*t + b;
},
easeOutQuint: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t*t*t + 1) + b;
},
easeInOutQuint: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
return c/2*((t-=2)*t*t*t*t + 2) + b;
},
easeInSine: function (x, t, b, c, d) {
return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
},
easeOutSine: function (x, t, b, c, d) {
return c * Math.sin(t/d * (Math.PI/2)) + b;
},
easeInOutSine: function (x, t, b, c, d) {
return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
},
easeInExpo: function (x, t, b, c, d) {
return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
},
easeOutExpo: function (x, t, b, c, d) {
return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
},
easeInOutExpo: function (x, t, b, c, d) {
if (t==0) return b;
if (t==d) return b+c;
if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
},
easeInCirc: function (x, t, b, c, d) {
return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
},
easeOutCirc: function (x, t, b, c, d) {
return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
},
easeInOutCirc: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
},
easeInElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b;if ((t/=d)==1) return b+c;if (!p) p=d*.3;
if (a < Math.abs(c)) {a=c;s=p/4;}
else s = p/(2*Math.PI) * Math.asin (c/a);
return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
},
easeOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b;if ((t/=d)==1) return b+c;if (!p) p=d*.3;
if (a < Math.abs(c)) {a=c;s=p/4;}
else s = p/(2*Math.PI) * Math.asin (c/a);
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
},
easeInOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b;if ((t/=d/2)==2) return b+c;if (!p) p=d*(.3*1.5);
if (a < Math.abs(c)) {a=c;s=p/4;}
else s = p/(2*Math.PI) * Math.asin (c/a);
if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
},
easeInBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*(t/=d)*t*((s+1)*t - s) + b;
},
easeOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
},
easeInOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
},
easeInBounce: function (x, t, b, c, d) {
return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
},
easeOutBounce: function (x, t, b, c, d) {
if ((t/=d) < (1/2.75)) {
return c*(7.5625*t*t) + b;
} else if (t < (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
} else if (t < (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
} else {
return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
}
},
easeInOutBounce: function (x, t, b, c, d) {
if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
}
});